Pith Number

pith:QEXDZ2O5

pith:2018:QEXDZ2O5OFAIUE2BS3LIFTWIMB

not attested not anchored not stored refs pending

Goursat rigid local systems of rank four

Danylo Radchenko, Fernando Rodriguez Villegas

arxiv:1803.08379 v1 · 2018-03-22 · math.NT · math.AG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QEXDZ2O5OFAIUE2BS3LIFTWIMB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:19:48.837724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

812e3ce9dd71408a134196d682cec860554dd117194b656d90c03c4da4b58e0d

Aliases

arxiv: 1803.08379 · arxiv_version: 1803.08379v1 · doi: 10.48550/arxiv.1803.08379 · pith_short_12: QEXDZ2O5OFAI · pith_short_16: QEXDZ2O5OFAIUE2B · pith_short_8: QEXDZ2O5

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QEXDZ2O5OFAIUE2BS3LIFTWIMB \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 812e3ce9dd71408a134196d682cec860554dd117194b656d90c03c4da4b58e0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb7b973b822679efe4d6c9554d12d339dea71293763f3afc191d7f73cb670444",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2018-03-22T14:36:44Z",
    "title_canon_sha256": "5f954d7bf30afd9d5b8121ae4a16e93d21593ba4b616e8a55c5ddf23a233ead0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08379",
    "kind": "arxiv",
    "version": 1
  }
}